Power-transmission mechanism.



T. R. RYSZKA.

POWER TRANSMISSION MECHANISM.

APPLICATION FILED 0CT.11, 1911.

Patented July 23, 1912.

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UNITED sTATEs PATENT oEEioE.

THEODOR RICHARD RYSZKA, F BALTIMORE, MARYLAND.

POWER-TRANSMISSION MECHANISM.

To all whom t may concern Be it known that I, 'IHEoDoR RICHARD Rrsziia,a citizen of the United States, residing at Baltimore, in the State ofMaryland, have invented a certain new and useful Improvement inPower-Transmission Mechanism, of which the following is a specification.

My invention relates to improvements in power transmission mechanism.

The object of my invention is to provide a simple, compact, strong anddurable power transmitting mechanism particularly adapt ed for drivingpropellers of motor boats.

The novel features of my invention are hereinafter fully described andclaimed.

In the accompanying drawings I have illustrated a preferred form of myinvention.

Figure 1 is a view partly in side elevation and partly in verticalsection of my improved power transmission mechanism, the operating leverbeing shown in the neutral position. Fig. 2 is a horizontal sectionalview on the line 1 5 of Fig. 1, some of the parts being broken away.Fig. 3 is an enlarged cross section on the line c-d of Fig. 1. Fig. 4 isa cross section on the line @#f of Fig. 1. Fig. 5 is a cross section onthe line g-L of Fig. 1. Fig. 6 is a vertical sectional view on the lineof Fig. 1.

Similar reference characters designate similar parts in the differentviews.

1 designates a horizontal driving shaft rotatable by any desired type ofengine, not shown, the shaft having secured to and rotatable with it afriction wheel 2 having an annular concentric end flange 3 provided onits inner surface with annular grooves 4. Secured rigidly to the wheel 2and disposed concentrically with the flange 3 is a smaller frictionwheel 5 having peripheral grooves 6 which register with the grooves 4.

A laterally movable shaft 7 has secured to one end a friction wheel 8disposed between the flange 3 and wheel 5 and provided with annularperipheral flanges 9 adapted to alternately enter the grooves 4 and 6and to have driving contact with the wheels 2 and 5 when an operatinglever l0 is swung alternately to two positions at opposite sides of aneutral position, in which latter position the lever 10 is shown inFig. 1. The lever 10 is pivoted by a horizontal bolt 11 to a suitablesupport comprising a standard Specification of Letters Patent.

Application led October 11, 1911.

Patented July 23, 1912.

serial No. 654,050.

12 having an arcuate slot 13 through which extends a bolt 14 movablelengthwise of the slot and secured to the lever 10. For clamping thelever in the position to which it is adjusted, a nut 15 having a handle16 is mounted on the bolt 14 and is adapted to bear against the standard12.

Rigidly secured to the lever 10 by bolts 17 is a block 18 having ahorizontal hole 19 in which is mounted a bearing member 20 in which isrotatively mounted the shaft 7 and which is pivoted in the block 18 bymeans of two horizontal bolts 21 mounted` in diametrically o ppositepositions in the block 18 and having their inner ends respectivelylpivotally mounted in recesses provided therefor in opposite sides ofthe block 18. Lock nuts 22 may be mounted on the bolts 21 and adapted tobear against the block 18 for respectively clamping the said bolts inthe posit-ions to which they may be adjusted.

A propeller 23 is rigidly secured to a horizontal propeller shaft 24which is mounted in a bearing 25 and has secured to it an internal gearwheel 26 which meshes with a pinion 27 which is secured to a horizontalintermediate shaft 28 preferably disposed end to endr relative to theshaft 7 to which it may be connected by any suitable flexible couplingmeans. In the drawing I have illustrated a coupling means comprising acoil spring 29 which encircles the adjacent ends of the shafts 7 and 28to which the ends of the spring are secured respectively by splitclamping rings 30 which embrace the spring 29 to which the rings areclamped by bolts 31.

A support comprising, preferably, a U shaped bracket 32 has its armsprovided respectively with bearings 33 and 34 in which are respectivelyrotatively mounted the'shafts 24 and 28; The internal gear wheel 26 isdisposed between the arms of the bracket 32 which serve to receive theend thrust communicated to the gear wheel 26 by the propeller shaft 24.

By employing an internal gear wheel 26 to coperate with the pinion 27,space is conserved, a desirable feature in a motor boat, and the gearingconnecting the shafts 24 and 28 is not so liable to catch the clothingor the fingers of an occupant of the boat, as would be the case wereother gearing employed.

In operating my invention, the nut l5 is loosened and the lever swung,for example, to Athe left, as viewed in lfig. l. The shaft 7 will thusbe swung through the intermediacy of the bleek 18 and bearing member Q0so that the friction wheel 8 will engage the flange 3 of the wheel 2.The shaft 7 will thus be rotated in one direetion, thereby rotating thepropeller 23 in like direction through the intermediacy of the springQ9, shaft 28, pinion 27, gear wheel 126 and shaft 2st. swinging thelever l0 to the right of the neutral position shown in Fig. l, thefriction wheel 8 may be made to engage the wheel 5, thereby reversingthe direction of rotation of the shaft 7 and of the propeller L3. Afterthe lever l0 has been swung to the desired position, it is secured insuch position by tightening 'the nut l5.

I do not limit my invention to the struc ture shown and described asmodifications,

within the scope of the appended claims,

may be .made without departing from the spirit of my invention.

H aving` thus described my invention, what I claim and desire to secureby Letters Pat ent, is:-

l. In power transmission mechanism, a laterally movable shaft, a lever,a bearing member pivotally mounted on the lever and in which the shaftis rotatively mounted, driving means by which the shaft may bealternately rotated in opposite directions when the lever is alternatelyswuiig to two positions at opposite sides of a. neutral position, apropeller shaft, an intermediate shaft, gearing connecting the propellerand intermediate shafts, and flexible coupling means connecting thelaterally movable and intermediate shafts.

2. In power transmission mechanism, a laterally movable shaft, a lever,a bearing member pivotally mounted on the lever and in which the shaftis ro-tatively mounted, driving means by which the shaft may bealternately rotated in opposite direc tions when the lever is swung`alternately to two positions at opposite sides of a neutral position, apropeller shaft, an intermediate shaft, an internal gear wheel and apinion meshing with each other and respectively secured one to thepropeller shaft and one to the intermediate shaft, and flexible couplingmeans connecting the laterally movable and intermediate shafts.

3. In power transmission mechanism, a laterally movable shaft, a lever',a bearing member pivotally mounted on the lever and in which the shaftis rotatively mounted, driving means by which the shaft may bealternately rotated in opposite directions when the lever is alternatelyswung to two positions at opposite sides of a neutral position, apropeller shaft, an intermediate shaft, an internal gear wheel and apinion secured one to the propeller shaft and the other to theintermediate shaft and meshing with each other, flexible coupling meansconnecting the laterally7 movable and intermediate shaftf", and a tlshaped support the arms of which have bearings between which the saidge: r wheel is located and which respectively support the propeller andintermediate shafts.

Ll. In power transmission mechanism, a laterally n'iovable shaft, alever, a bearing member pivoted to the lever and in which said shaft isrotatively mtun'ited, driving mea-ns by which .the shaft may bealternately rotated .in opposite directions when the lever isalternately swung to two positions at opposite sides of a neutralposition, and means for releasably holding the lever in the position towhieh it may be swung.

5. In power transmission mechanism, a laterally movable shaft, a lever,a bolt earried by the lever, a bearing member pivoted to the .lever andin which the shaft is rotatively mounted, dri vingI means by lwhich theshaft may be alternately rotated in opposite directions when the leveris swung alternately to two positions at opposite sides of a neutralposition, a support to which the lever is pivoted, the support having aslot through which said bolt extends and in which the bolt is movablelengthwise of the slot, and a nut mounted on the bolt and adapted tobear against said support for clamping the lever in the position towhich it may be adjusted.

In testimony whereof I have signed my name to this specification inpresence of two subscribing witnesses.

THEODOR RIC/Iirrll) RYtjlZir. lVitnesses Gnonon C. STAHL, IioUrsnICIERMANN.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of atents, Washington, D. C.

